Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors page 41

Opening the boiler for cleaning
E
F
Fig. 31
1. Undo screw at top panel
A
panel.
2. Pull back top panel
C
If the ventilation air connection is mounted on the
back top panel, remove the ventilation air connec-
tion first.
and remove the top
B
to the front and remove.
Commissioning, inspection, maintenance
(cont.)
2x
3. Undo 2 screws and remove side panel
D
4. Remove front panel
B
C
D
A
.
E
.
F
41